Churndrill noise-reducing sleeve
A technology of percussion drilling and noise reduction, which is applied in the field of percussion drilling, can solve problems such as difficulty in implementation, and achieve the effects of reduced possibility, good noise reduction effect, and easy realization
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[0012] The present invention will be further described below with reference to the drawings and embodiments.
[0013] Such as figure 1 As shown, the impact drill noise reduction sleeve of the present invention includes an inner, an outer sleeve 6, 2, a rubber ring 1, an expansion muffler 4, a spring 3, and the like.
[0014] The upper end of the outer sleeve 2 is provided with a rubber ring 1, the outer sleeve 2 and the inner sleeve 6 are connected by a sliding pin 5, the inner top of the outer sleeve 2 and the upper end surface of the inner sleeve 6 are connected by a spring 3, and the inner wall of the outer sleeve 2 is glued with 2 to 3 layers. An expansion muffler 4 composed of an annular perforated baffle.
[0015] The inner wall of the jacket 2 cylinder is glued with two to three layers of ring-shaped perforated partitions to form an expansion muffler 4. This muffler is a combination of a tube and a chamber, and the chamber is connected to the tube. Utilizing the sudden chan...
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